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Advances in gravity analyses for studying volcanoes and earthquakes
This report highlights the usefulness and applicability of various gravimetric methods for studying earthquakes and volcanic activities. A high-resolution gravity anomaly map of Japan reveals areas with very steep horizontal gradients, where potential seismic faults are likely to be buried. Such tra...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Japan Academy
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7030974/ https://www.ncbi.nlm.nih.gov/pubmed/32037369 http://dx.doi.org/10.2183/pjab.96.005 |
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author | OKUBO, Shuhei |
author_facet | OKUBO, Shuhei |
author_sort | OKUBO, Shuhei |
collection | PubMed |
description | This report highlights the usefulness and applicability of various gravimetric methods for studying earthquakes and volcanic activities. A high-resolution gravity anomaly map of Japan reveals areas with very steep horizontal gradients, where potential seismic faults are likely to be buried. Such traditional geoprospecting is coupled with novel cosmic-ray radiography to produce a fine-resolution (<100 m) three-dimensional density structure of a volcano. On the other hand, temporal gravity changes provide invaluable information about the process of earthquake faulting, volcanic eruptions, caldera formation, etc. Specifically, in this report we present our previous work on gravity research for solid earth science: (1) the first detection of coseismic gravity changes, (2) the virtual visualization of the rising and falling of magma in a conduit of Asama volcano, and (3) the large-scale lateral movement of magma during the Miyake-jima eruption in 2000. |
format | Online Article Text |
id | pubmed-7030974 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Japan Academy |
record_format | MEDLINE/PubMed |
spelling | pubmed-70309742020-02-25 Advances in gravity analyses for studying volcanoes and earthquakes OKUBO, Shuhei Proc Jpn Acad Ser B Phys Biol Sci Review This report highlights the usefulness and applicability of various gravimetric methods for studying earthquakes and volcanic activities. A high-resolution gravity anomaly map of Japan reveals areas with very steep horizontal gradients, where potential seismic faults are likely to be buried. Such traditional geoprospecting is coupled with novel cosmic-ray radiography to produce a fine-resolution (<100 m) three-dimensional density structure of a volcano. On the other hand, temporal gravity changes provide invaluable information about the process of earthquake faulting, volcanic eruptions, caldera formation, etc. Specifically, in this report we present our previous work on gravity research for solid earth science: (1) the first detection of coseismic gravity changes, (2) the virtual visualization of the rising and falling of magma in a conduit of Asama volcano, and (3) the large-scale lateral movement of magma during the Miyake-jima eruption in 2000. The Japan Academy 2020-02-10 /pmc/articles/PMC7030974/ /pubmed/32037369 http://dx.doi.org/10.2183/pjab.96.005 Text en © 2020 The Japan Academy This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Review OKUBO, Shuhei Advances in gravity analyses for studying volcanoes and earthquakes |
title | Advances in gravity analyses for studying volcanoes and earthquakes |
title_full | Advances in gravity analyses for studying volcanoes and earthquakes |
title_fullStr | Advances in gravity analyses for studying volcanoes and earthquakes |
title_full_unstemmed | Advances in gravity analyses for studying volcanoes and earthquakes |
title_short | Advances in gravity analyses for studying volcanoes and earthquakes |
title_sort | advances in gravity analyses for studying volcanoes and earthquakes |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7030974/ https://www.ncbi.nlm.nih.gov/pubmed/32037369 http://dx.doi.org/10.2183/pjab.96.005 |
work_keys_str_mv | AT okuboshuhei advancesingravityanalysesforstudyingvolcanoesandearthquakes |